Rotary shears.



4 SHEETS-SHEET l.

Patented July 19, 1910.

E. E. SLICK.

ROTARY SHEARS.

APPLIOATION FILED JUNE 14.1909.

E. E. SLICK.

ROTARY SHEARS.

APPLIGATION FILED JUNE 14, 1909.

Patented July 19, 1910.

4 BHEETS-SHEBT 2.

IHI! Ill E. E. SLICK.

ROTARY SHEARS.

APPLICATION FILED JUNE 14, 1909.

0 1 9 1 9 1 y IA H J d e t H m a P 4 SHEETS-SHEET 3.

8 a w W 6 2 a 2 5 4 Q 7 1W4 2 2 H.

WITNESSES E. E. SLICK. ROTARY SHEARS.

APPLICATION FILED JUNE 14, 1909.

5 3* Patented July 19, 1910.

4 SHEETS-SHEET 4.

WITNESSES INVENTOR M Z I 6. 6. Shah I v Q QM,

I man EDWIN E. SLICK, F PITTSBURG, PENNSYLVANIA.

ROTARY SHEARS.

Specification of Letters Patent.

Patented; July 19, 1910.

Application filed June 14, 1909. SerialNo. 502,017.

To all whom it may concern:

Be it known that I, EDWIN Pittsburg, Allegheny county, Pennsylvania,have invented a new and useful Improvement in Rotary Shears, of whichthe following is a full, clear, and e:;act description, reference beinghad to the accompanying drawings, forming part of this specification, inwhich- Figure 1 is a partial plan viewof my im-- proved apparatus; Fig.2 is a continuation of Fig. 1; Figs. 3 and 4 are views siinilar'to Figs.1 and 2, showing a sectional side elevation of the apparatus; Fig. 5 isa front elevation of the shear mechanism; Fig. 6

is a sectional end elevation of the supporting mechanism-in front of theshears with the metal in place; Fig. 7 is an enlarged eleva-' tion ofthe cutters; Fig. 8" isa similar view showing a modified form; Fig. 9 isan edge View of the cutter or knife of Fig. '8; Fig. 10 is adiagrammatic end view showing the manner of cutting through the ingot.

ldy invention relates to the shearing of i te and is designed to providean improved apparatus therefor. In the drawings, in which I showa'preferred form of my invention, the ingot shown at 2- is arranged tobe carried on a longitudinal positively driven roller 3, which, in turn,is carried at one end. on two idle rollers 4, and on the opposite end bythe bearing 5. The roller 3 is shown as extending the entire length ofthe ingot and in turn is supported on the pair of rollers 4 and the capbearing 5. The roller 3 is arranged to be adjusted so as to supportingots of varying diameters in proper position relative to the shearknives. As shown in the drawings, this roller support 3 is raised andlowered vertically by inserting or removing the liners 4 from betweenthe roller supports 4 of the base plate 4.

Along the sides of and above thesupports ing roller 3 are side guides 6and 7, which are designed to engage with the sides of the ingot and holdit against sidewise movement while being moved endwise in feeding theingot forwardly and during the cutting operation. The ingot may be fedinto position between these guides over the skids 8. The roller 3 1spositively drlven by a bevel gear connection shown at-S), with a shaftE. SLICK, of;

10, having slow motion gearing 11, which is actuated by an electricmotor 12. The metal.

is pushed endwise or longitudinally of the roller 3 and between theguides 6 and 7 by means of a rotary pusher head 13, which is fastened tothe front end of an arm or bar l4, so as to rotate on the bar with theingot when-in engagement with the end of the ingot. The arm 14 isengaged by azfriction roller 15, driven through slow motion gearingconnections 16 and 17, by an electric motor 18. The idle supportingrollers 4'may be either continuous rollers supported at each end inhearings, or may be in the form, shown, namely, shafts having overhanging disks 4, mounted thereon.

The apparatus above described sits in front of and in line with theshearing mechanism. proper, the lines X-X, i -Y of Figs. 1 and 3coinciding with the lines XX and YY of Figs. 2 and 4, to show therelative positions of the apparatus.-

This shearing mechanism consists of two eccentric knives'or shear blades19 and 20.

In the form shown, these eccentric knives are formed as disks witheccentric edge portions clamped between collars-21, which secure them onthe shafts 22. The collars 21 are adjustably held in their spaced apartposition and serve to support and prevent sidewiseinovement of the ingotduring the cutting operations. The shafts 22 with the knives l9 and andthe collars 21 are adjustable toward and away from each other, and areheld in their adjusted position by the adjusting screws 23 and lock nuts23*; and where changes in the size of the ingot are very great, collarsof greater or lesser diameter are substituted. tend within the bearings23, in the housings 23, and are connected by spindle and couplingconnect-ions 24, with a stand of driving pinions 25, which receivemotion from a driying shaft 26.

Beyond the eccentric shear blades and between thcni is located a rotarycup-shaped holder 27, arranged to engage with and hold the end of theingot durmgthe cutting operation and to hold the cut off portion.Thisholder is mounted on a tubular stem 28, which slides over astationary rod 29,-

secured to the housing '23 at its rear end. The tubular support 28 isrotatably mounted The shafts 22 errin bearings 30, which are carried ona slidmg frame 31, connected to the intermediate portion of a doubleplunger 32, moving within single acting hydraulic cylinders 33. Durmgthe cutting operation, the holder 27 rotates with the ingot and afterthe cutting operation, it is retracted to allow the cut off section todrop. If the section sticks in the holder, the rod 29 acts to push itout as the holder is retracted. The out OK section drops down,preferably into a car 3st, movable on a. track extending below theshears.

In Figs. and 9, I show a. modified form of shear knives, in which theportions 35 of the eccentric shear blades are removable,

- so that when theygare worn, they may be re placed. I have shown thesedetachable sec tions as attached by countersunk bolts 36, to the cutterdisk, which disk is then secured to the shaft in the same manner asbefore;

In the operation of the device, an ingot which is preferably cylindricalin form is rolled over the skids on top of the roller 3 and between theguides G and 7. The roller 3 is then positively rota-ted and the cuttingknives are rotated in a vcounter-clockwise direction, looking at Fig. 5.As the knife shafts rotate, the eccentric knives will gradually severthe ingot from diametrically opposite sides by a succession of cuts, thecutting action being illustrated in Fig. 10. During this time, the ingotis being rotated both by the frictional action of the eccentric knivesand also by the frictional driving action of its supporting roller,which is positively driven. The driving of the rotary supports for theingot is of importance, especially toward the end of the operation,since the friction on the knives at such time is hardly sufiicient toturn the piece being cut. During this operation, the holder keeps theend of the piece in proper position and holds it after it is severedfrom the main body. The collars 21 stiffen the shear knives 19 and 20,and also serve to maintain the body portion of the ingot in position andprevent its sidewise movement on the support 3 during the cuttingoperations. The holder is then retracted andthe severeddisk orcheese-like section drops 1nto the car. The pusher 13 is then actuatedto move the ingot forwardly a proper distance for the next severingoperation. During this interval, the ingot slides between the diskscarrying the eccentric knives, which knives are then in the positionshown in Fig. This pushing is'continued until the end of the ingot isagain received ip the holder, which, in the, meantime, ha been movedforward into the desired position. The holder, therefore, also acts as agage.

In order to cut different sized ingots,

shear knives of different sizes may be substituted, and if desired, thedegree of cocentricity of the knives may be varied.

The advantages of my invention result from the simplicity of theapparatus and the rapidity of operation. The blank is sheared 01f flaton'one face and slightly conical on the opposite face, with very littleupsetting action at its edges.

Changes may be made in the form and operation of apparatus withoutdeparting from my invention.

I claim:

1. In rotary shear mechanism, a support for a cylindrical article,consisting of a rotary surface or surfaces on which the article restsduring shearing, a pair of opposed eccentric rotary shear blades,connections .for positively rotating 'the said shear blades, andconnections for positively ro tating the rotary element or elements onwhich the article rests, substantially as described.

2. In rotary shear mechanism, a rotary element or elements on which thearticle is mounted, side-supporting guides for the article, a pair ofeccentric rotary shear blades, connections for positively rotating theshear blades, and connections a1"a1'1ged to positively drive the rotaryelement or elements on which the article rests, substantially asdescribed.

03. In rotary shear mechanism, a rotary support, connections forpositively rotating the same, a pair of eccentric shear blades,connections arranged 'to rotate the shear blades, and an end usherarranged to move the metal longitudinally on its rotary support,substantially as described.

4. In rotary shear mechanism, a rotary support, mechanism for positivelyrotating said support, and a pair of opposed rotary shear bladesarranged to act upon the metal while mounted upon said support,substantially as described.

5. In rotary shear mechanism, a rotary support, mechanism for positivelyrotating said support, a pair of opposed rotary shear blades arranged toact upon the metal while mounted upon said support, and means forpositively rotating the shear blades, substantially as described.

6. In rotary shear mechanism, a rotary support for-the metal, mechanismfor posi-.

and mechanism for reciprocating .thesame,

some? ceive and support the end of the metal being severed during thecutting operation,

substantially as described; p

10. Ina rotary shear device, a rotary support and a rotary holderarranged to receive and supportthe end of the metal being severed duringthe cutting operation mechanism for reciprocating the same, and anejector arran ed to push out the cut piece when the hol er is movedendwise, substantially as described. Y

11. In mechanism for severing hot ingots, a rotary support, and-rotaryeccentric shear knives having a flat side portion arranged to enter thecut in the metal being sheared, said fiat portion being substantially atright angles to the axis of the shear, substantially as described. I I

12. In rotary shear mechanism, a pair of opposed rotary eccentric shearblades having fiat surfaces arranged to enter the cut in the metal beingsheared, substantially as described.

13. In rotary shear apparatus, a pair of opposed rotary shear blades,mechanism for positively rotating the blades, and connections forrotating the ingot, substantially as described.

14:. In rotary shear mechanism, a pair of opposed eccentric shear bladeshaving fiat surfaces arranged to enter the groove formed in the metalduring the cutting operation, substantially as described.

15.. In rotary shear mechanism, a pair of opposed rotary shear knives,shafts on which the knives are inounted, and clamp lug collars forsecurin the knia es in place on said shafts, the co lars being,.arrangcd to guide the metal during the cutting operations,substantially asdescribed.

16. In rotary shear mechanism, a pair of opposed eccentric shear bladesand clamping collars for the blades arrariged to ,contact.

with and guide the metal during the cutting operations, substantially asdescribed.

17. In ingot shearing mechanism having shear knives, a rotary ingotsupport, means for rotating said support, and means for adjusting thesupport relative to said shear knives, substantially as described.

18. In ingot shearing mechanism having shear knives, a horizontal rotaryingot-supporting roller, and means for adjusting said roller in avertical direction relative to said shear knives, substantially asdescribed.

19. In rotary shear mechanism, a pair of opposed eccentric shear bladesand clamping collars for securing the blades in place, substantially asdescribed.

20. In ingot-shearin mechanism, a support by which the ingot is turnedin shearing, and means for adjusting said support relative to theshearing mechanism, substantially as described. 4 I

21. In rotary shear mechanism, a'pair of opposed rotary shear knives,shafts on which the knives are removably mounted and detachable clampingcollars for securing the knives in place on the-shafts, the collarsbeing arranged to guide the metal dur-' ing the cutting operations;substantially as described.

22. In rotary shear mechanism, a pair of opposed eccentric shear blades,removable clamping collars for the blades arranged to contact "with andguide the metal during'the cutting operations, and means for securingthe clamping collars in. place; substantially as described.

23. In rotary shear mechanism, a support, on which the 'metal turns whenbeing sheared, a pair of rotary shear blades and an end pusher arrangedto move'the metal endwise on its support, said pusher having a rotaryend engaging with the end of the metal and adapted to revolve with said'metal, substantially as described.

24:. In a rotary shear device, a rotary holder arranged to" receive oneend of the metal during the cutting operation and mechanism forreciprocating the same, a pusher arranged tomove the metallongitudinally and means for reciprocating the pusher, said pusherhaving a rotating head adapted to engage with and rotate \vlth theingot, substantially as described.

25. In shearing mechanism, a pusher arranged to contact with and movethe metal endwise relative to the shear knives, said pusher having arotary head thereon adapted to contact with and preventing endwisemovement of the metal during the severing operations, substantially asdescribed.

26. In a rotary shear device, a rotating stop arran ed to contact andrevolve with the metal uring the cutting operation and prevent endwisemovement of the metal while being severed, substantially as de scribed.

27. I11 a metal shearin device, rotary stops arranged to contact withopposite ends of the metal and adapted to engage with and hold themetalin position endwise while being severed; substantially asdescribed.

28. In a metal shearing device, rotary stops adapted to contact. withopposite ends of the metal and arranged to engage with and hold themetal in position endwise While being severed, and a rotary support onwhich the metal is turned during the severing operations; substantiallyas described.

29. In a metal shearing device, rotary stops adapted to contact withopposite ends of the metal and arranged to engage with and hold themetal in position endwise While being severed, a rotary support on Whichthe metal is turned during the severing optl'ttilOllSfllld means 'forpositively rotating said support; substantially as described.

30. In a metal shearing device, rotary stops adapted to contact withopposite ends of the metal and arranged to engage with and hold themetal in position endwise While being severed, and means for moving saidstops into and out of engagement with the metal; substantially asdescribed.

In testimony whereof, I have hereunto set my hand.

, EDWIh 1*]. SLHK.

Witnesses R. D. Lrr'rnn, H. M. Conwm.

